HYBRID FUZZY MODEL FOR RUBRIC SCORE OF COLLABORATION FACTORS ASSESSMENT: A NEGATIVE KNOWLEDGE APPROACH IN PETROCHEMICAL INDUSTRY

Author(s):  
Treenuch Wongpipit ◽  
Chaipong Pongpanich ◽  
Parames Chutima
2003 ◽  
Author(s):  
Catherine M. Burns ◽  
Lisa Garrison ◽  
Nick Dinadis

Synlett ◽  
2020 ◽  
Author(s):  
Shi-Liang Shi ◽  
Yuan Cai

AbstractAsymmetric hydroboration of simple and unactivated terminal alkenes (α-olefins), feedstock chemicals derived from the petrochemical industry, has not been efficiently realized for past decades. Using a bulky ANIPE ligand, we achieved a rare example of highly enantioselective copper-catalyzed Markovnikov hydroboration of α-olefins. The chiral secondary alkylboronic ester products were obtained in moderate to good yields and regioselectivities with excellent enantioselectivities.1 Introduction2 Conditions Optimization3 Substrate Scope4 Application5 Mechanistic Discussion6 Conclusions and Future Directions


Author(s):  
Celal Batur ◽  
Arvind Srinivasan ◽  
Chien-Chung Chan
Keyword(s):  

2018 ◽  
Author(s):  
Asel Sartbaeva ◽  
Paul R. Raithby ◽  
Remi Castaing ◽  
Antony Nearchou

Through a combination of thermogravimetry, mass spectrometry and differential thermal analysis, we demonstrate for the first time that all four zeolites show experimental differences in their host-guest interactions with 18C6. In addition, we have estimated the kinetics of 18C6 decomposition, which is a technique that has not been applied to zeolites previously. Using these findings as a toolkit, a more rational use of OSDAs can be utilised to prepare designer zeolites. Furthermore, the new methodologies presented herein can be applied to current zeolites, such as MFI-type zeolites used in the petrochemical industry.


2011 ◽  
Vol 10 (3) ◽  
pp. 381-386 ◽  
Author(s):  
Alexandru Trandabat ◽  
Marius Pislaru ◽  
Silvia Avasilcai

Alloy Digest ◽  
1965 ◽  
Vol 14 (9) ◽  

Abstract SANDVIK SANICRO 31 is an iron-nickel-chromium alloy having good resistance to corrosion and oxidation and good mechanical properties at elevated temperatures. It is recommended for electrical sheathing, pyrometer tubes, equipment for heat treating and furnace tubes and other equipment in the petrochemical industry. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-172. Producer or source: Sandvik.


Alloy Digest ◽  
1970 ◽  
Vol 19 (12) ◽  

Abstract SANDVIK 12R72HV is an austenitic chromium-nickel-molybdenum-titanium stainless steel suitable for metal temperature up to about 308 in the power industry and the petrochemical industry. Typical applications are superheater tubes and hydrocarbon crackers. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: SS-248. Producer or source: Sandvik.


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